Manly will play minor premiers Sydney Roosters in Saturday night's NRL qualifying final after going down 38-26 to Penrith in an epic last round encounter at Brookvale Oval.
Cruising at 16-0 midway through the first half, the Sea Eagles and Panthers engaged in see-sawing second half which saw the lead change hands a number of times, Penrith scoring two tries in the final three minutes to hand the visitors the win.
Had Manly won, they would have faced South Sydney on Friday night, the defeat giving them an extra day off ahead of the clash with the Roosters as the second game in the Allianz Stadium double-header.
But the Sea Eagles could certainly not be accused of tanking the game, having fought back valiantly twice late in the game, including David Williams's second try of the day with seven minutes to go to lock it up at 26-all.
From there the Panthers orchestrated a late entry for try of the year as they chanced their arm, a Luke Walsh kick finding Dean Whare in vacant space to put the visitors in front in the 77th minute.